BU4936G-TR

Supervisors Overview

The BU4936G-TR is a standard CMOS voltage detector IC manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features a fixed detection threshold of 3.6 V with a precision of ±1%. The device operates within a supply voltage range of 0.7 V to 7 V and consumes ultra-low current, typically 550 nA at maximum operating voltage. It provides a CMOS output type without manual reset or watchdog timer functions. The component is housed in an SSOP-5 package and supports an extended operating temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Ultra-low current consumption for battery-powered applications
• High accuracy voltage detection with ±1% precision
• CMOS output interface for direct logic connection

Supervisors Applications

• Portable electronic devices requiring low power monitoring
• Battery-operated systems needing voltage supervision
• General-purpose power supply support circuits

Supervisors Procurement Notes

Verify the supply status as Not Recommended for New Designs (NRND) before procurement. Confirm that the SSOP-5 package and 3.6 V threshold align with existing design requirements. Ensure compatibility with the specified operating temperature range and CMOS output characteristics for the target application environment.

Supervisors Selection Notes

Select this component when a fixed 3.6 V detection threshold is required with high accuracy. Consider the ultra-low current consumption for energy-sensitive designs. Verify that the CMOS output type meets the interface requirements of the downstream circuitry. Check if the NRND status impacts long-term availability needs.

Supervisors Part Context

This part belongs to the BU49xx series of standard CMOS voltage detectors from ROHM Semiconductor. The series offers various detection voltages in 0.1 V increments. The BU4936G-TR specifically targets applications needing precise monitoring at 3.6 V with minimal power draw, packaged in a compact SSOP-5 form factor suitable for space-constrained designs.

Supervisors Replacement Considerations

The BD5236G-1 is listed as a recommended replacement with the same package and similar detection voltage. Verify output type differences, as the BD5236G-1 uses an open-drain output compared to the CMOS output of the BU4936G-TR.